Artificial teeth



E. T. HEDLUND AND S. E. NOYES.

ARTIFICIAL TEETH.

APPLICATION HLED sEPT.3.1919.

15,332,466, Patented Mar. 2, 1920.

UNITED STATES PATENT OFFICE@ ELOF THOMAS HEDLUND AND STANLEY EDWARD NOYES, OF PORTLAND, OREGON.

ARTIFICIAL TEETH.

Application led September 3, i919.

To all whom t may concern:

Be it known that we, ELOF THOMAS HED- LUND and STANLEY EDWARD Norms, citizens oit the United States, residing at Portland, in the county of Multnomah and the State of QregOn, have invented certain new and useful Improvements in Jtrtiiicial Teeth, of which the following` is a specification.

lThe object of the invention, which relates to artiicial teeth of the form commonly mounted on a plate of rubber or other material, is to provide means of holding` the plate securely in the mouth, both on the upper and lower jaws.

This object is attained by the mechanism illustrated in the accompanying drawing, which forms a part of this specification, and in which Figure l is a front elevational view, showin g` a complete denture, with both upper and lower plates with the teeth in place. Fig'. 2 is a side elevational view. Fig. 3 is a plan view of the gold bar and spring attachment.

Similar numerals refer to similar parts throughout the several views.

In the upper plate l and the lower plate 2 are mounted the teeth 3, the numeral 3 referring to all the teeth, in both plates, and forming in connection therewith the ordinary complete denture.

The gold bar and spring attachment a is secured to the upper plate l at the points o 5, preferably by being embedded in the material ot which the plate is constructed,

Specification of Letters Patent.

Patented Mar. 2, 1920.

Serial No. 321,3()9.

and is shaped to contorni to the under side of the upper lip by being bent at the point (i. The gold bar and spring` attachment 7 tor the lower plate is attached to the plate at the points S 8 and is also shaped to conform to the inside of the lower lip by being` bent at the point corresponding to the similar point on the upper plate and designated by the numeral 9.

fThe gold bar and spring attachment d is corrugated at the ends 10 l0, to insure a secure embedn'ient in the plates l and 2, and is provided with the springs ll il, which may be adjusted to any desired tension.

ln operation the plates l and 2 with the teeth 3 are inserted in the mouth in the usual manner, the spring attachment i 4t bearing on the gums inside the lips, and being adjusted to give the required amount of tension will hold the plates firmly in place by drawing same securely into contact with the interior of the inouth.

Having` thus 'fully described our invention, we claim and desire to protect by Letters Patent:-

In combination, a complete denture comprising both upper and lower plates, a bar and spring attached to each plate and adapt ed to the shape ot the lips and adjustable to give any required tension to draw the plates iirmly into contact with the interior or the mouth.

ELOF THOMAS HEDLUND. STANLEY EDWARD NUYES. 

